Advertising device.



F. EVANS.

ADVERTISING DEVICE.

APPLIOATION rum) APB.15. 1910.

982,355. I I Patented Jan. 24; 1911.

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ADVERTISING DEVICE.

urucnmn FILED APB..15. 1910.

982,355. Patented Jan. 24, 1911.

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' Lilia/7 v UNITED STATES PATENT oFFIoE.

FREDERICK EVANS, OF LONDON, ENGLAND.

To all whom it may concern:

Be it known that I, Fnnomuox EVANS, a subject of the Kin of Great Britain, residing at Hatton Gar en, in the city of London, England, have invented certain new and useful Improvements in Advertising Devices, and of which the following is a specification. y

- This invention relates to improvements in advertising devices of that kind in which a trans arent or translucent picture is pro gressively and gradually illuminated by a central source of light, the s ace between the picture and the source of lig t being divided by cross partitions into cells, opening externally on to the picture and internall on to the periphery of a revolving cylin er surrounding the source of light, said cylinder having walls alternately transparent and opaque and revolved by clockwork or otherwise.

In carrying out my present invention I employ a rotating cylinder which is con structed of opaque material and contains within it the source of light, said cylinder being formed with slots or'openings in its circular wall through which the rays of light pass through the smaller ends of tapered compartments in the larger ends of which the series of trans arent letters or devices are fitted. These etters or devices are not intended to be progressively illumi- 'so that a stepy-step illumination, of the devices shall take place as the slot of the lightcontaining cylinder advances and travels around the open smaller ends of the tapered compartments. I also provide means whereby any desired number ,of colors can be employed to give colored effects to the advertisement displayed, without entailing any alteration of the drum or cylinder which is only provided with the slot or slots aforesaid through which the light rays are projectedon to the back of the device to be illuminated. This means comprises a frame adapted to rotate between the slot or slots in the .drum and the device to be illuminated, and provided with a number of colored Specification of Letters Patent.

Application filed April 15, 1910. Serial No. 555,663.

Patented Jan. 24, 1911.

screens. Intermittent movement is given to the frame by one of the rotating parts, so that eaeh colored screen su'ccesslvely coincides with the slot or slots in the drum. Suitable devices are emplo ed to retain the frame carrying the colore screens in position to allow the light issuing from the slot in the rotating drum to penetrate the colored screen and be transmitted through the tapered compartmented chamber, to give a colored effect to the advertisement.

I will describe my invention more fully with reference to the accompanying drawings, which show an example of construction of the improved advertising device.

-Figure 1 is a vertical section thereof. Fig. 2 is a rear elevation of the polygonal frame rovided with colored. screens and means or retarding its rotation. Fig. 3 is a part sectional plan, showing the means by which intermittent movement 1s given to the colored screens and also the compartmented chamber through which the rays of 11 ht are projected to illuminate the letters or evices.

On a platform 1 is carried an advertisement display plate 2 and a base-plate 3. The base-plate 3 is provided with a footstep bearing 4 to support the spindle 5 on its upper end to provide the desired support. The plate 2 may be formed of opaque material except at the portion or portions 10 where a trans arent advertisementfwhich may consist o letters or deV10eS 1S provided. At the rear and at a suitable distance from this plate 2 the platform 1 sup- I ports in vertical osition, a second opaque plate 11 having s ots 12 thereln, wh1ch are preferably of smaller area than the portions 10 which it is desired to illuminate. The slots 12 are so situated in the. vertical plate 11 as to be occasionally opposite the slot 13 in the drum 7, as the latter turns and moreo 'er there is left between each pair of the o enings 12 ,(Fig. 3) a bar of the opaque p ate 11, which barmay be of any desired width in order thatthere shallbe a step-by ,eoulda-be dispensed with.

step illumination of the devices at the portions 10 in contradistinction to illuminating the latter in a progressive and continuous manner. I

Projecting from outside the openings 12 toward the portions'lO of the plate 2 is a. tapered rectangular light transmitting chamber 14 splayed in a forward direction as shown, and if desired, provided with a number of vertically arranged division walls 15 (see Fig. 3), so as toconstitute a compartmented chamber, each compartment registering with the letter or device to be illuminated. I Y

Supported on a horizontal pin or. stud 16 on the rear side of the plate 11 is a light metal frame 17 carrying a plurality of col-. ored screens 18. In the present case five such screens are shown, see Fig. 2, but a greater or less number could be used. These colored screens are connected to the hub on which they rotate by arms or spokes 19.'

The frame 17 has imparted to it intermittent rotary motion, and the colored screens 18 thereon are adapted to come successively into alinemen't with the slot 13 in the drum and the slots 12 in the plate 11 between which the frame rotates. It will therefore readily be seen that upon the slot in the drum 7 coming opposite one of the colored screens 18 and the slots'12, the rays of light projected from the illuminating source 1nside the drum 7, will penetrate the colored screen, and passing through the slots 12 illuminate the letters or devicess'ituated opposite the larger and front end of the compartmented chamber 14. An advantageous modeof supporting the drum consists in fixing it to'a metal ring 24 securedto the spin dle 5 by means of thin metal arms 20. Partial-rotation may be imparted to the frame 17, say at each rotation of the drum, by a finger or tappet 21 on the drum-supporting ring 24 (see Fig. 3) or by a ta pet carried on or about the rotating spin le -5 and so positioned as to engage one of the spokes of the said frame. Extensions of the spokes 19 or pins or projections 22 on the frame 17 are adapted to be engaged by'weak metal sprin' s 23 or the like, in order to retain the saidrame in any one of the desired positions until upon another rotation of the drum 7 the frame is again moved.' 1

With the arrangement of the compart- 'mented chamber 1-4 as described, the inner walls of which are whitened or provided with light reflecting surfaces, it is possible to illuminate a large surface with a comaratively small source of illumination, and, it is therefore possible to employ a com paratively small drum.

Although I have described the drum 7 as being driven by the hot air ascending from the burner, it may be driven by other suitable means, in which case of course the fan 6 What I claim as my invention and dedrum carried by said spindle and having a segmental slot through its circular wall, means for revolving said spindle and drum,

a source of light located within the said drum to project itslight rays through said I slot, I a carrier frame a plurality of color screens carried by said frame, ineans for rotatably supporting said carrier frame, means for partially rotating said carrier frame, and for limiting the extent of angular motion of said carrier frame at the termination of each of such movements, and means for supporting an advertisement in front of the color screens carried by said carrierframe and opposite said slot in said.

drum, so that rays of light passing through said slot and said color screens fall on the said advertisement substantially as set forth.

2. In an advertisement device, the combination with avertical revoluble spindle, means for supporting the said spindle, a drum carried by said s indle and having a segmental slot through its. circular wall, means forrot-atin said spindle and drum, and a source of lig t located within the said drum to project its light rays through said slot; of a carrier frame a plurality of color screens carried by said frame, a horizontal spindle for rotatablycarrying'said frame, a vertical slotted plate carryin ,said hori zontal sp'indle, means for partia 1y rotating said carrier frame at each revolution of said drum, and for limiting the extent :ofangular" 'bination with a vertical revoluble spindle, means for supporting the said .spindle a y said spindle and having a drum carried segmental slot through its circular wall, means for rotatin said spindle and drum, and a source of lig t located within the said drum to project its light rays through said slot; ofa carrier frame a plurality of color screens carried by said frame, a horizontal spindle for rotatably carrying said frame,

a vertical slotted plate carrying said horizontal spindle, a tappet son said drum to contact with andpartially rotate said carrier frame at each revolution of the drum,

means for limiting the extentjof angular motion of said carrier frame at the termifront of the color screens carried by said carrier frame and opposite said slot in said drum, so that rays of light passing through said slot and said color screens fall on the i said advertisement substantially as set forth.

4.- In an advertisement device, the combination with a vertical revoluble spindle, means for supporting the said spindle, a drum carried by said spindle and having a segmental slot 'throu h its circular wall, means for rotating sa1d spindle and drum, and a source of light located within the said drum to project its light rays through said slot; of a carrier frame a plurality of' color screens carried by said frame, a horizontal spindle for rotatably carrying said frame, a vertical slotted plate carrying said horizontal spindle, a tappet on said drum to cont-act with and partially rotate said carrier frame at each revolution of the drum, arms projecting radially from the carrier frame, springs located on the vertical slotted plate to contact with said arms and limit the angular motion of the said carrier frame at each revolution of the drum, and means for supporting an advertisement in front of the color screens carried by said carrier frame and opposite said slot in said drum, so that rays of light passing through said slot and said color screens fall on the said advertisement substantially as set forth.

5. In an advertisement device, the combination with a vertical revoluble spindle, means for su porting the said spindle, a drum carried by said spindle and having a segmental slot through its circular wall, means for rotating said spindle and drum, a source of light located within the said drum to project its light rays through said slot, :1 carrier frame a plurality of color screens carried by said frame, a horizontal spindle for rotatably carrying said frame, a vertical slotted plate carrying said horizontal spindle, means for partia ly rotating said carrier frame at each revolution of sa1d drum, and means for limiting the extent of angular motion of said carrier frame at the terminafor supporting the forward ends of the compartmented chamber walls in such a position that said compartmented chamber is in register with slots. in the aforesaid slotted plate,

and with an advertisement on the transpar-- ent portions of the opaque plate, the said compartmented chamber being located opposite the said slot in said drum, so that rays of light passing through said slot, said color screens and said compartmented chamber fall on the said advertisement substantially as" set forth.

6. In an advertisement device, the combination with a vertical revoluble spindle, a latform, a base-plate on said latform, a oot-step bearing on said base-p ate to support the said spindle, a drum carried by said spindle and having a segmental slot through its circular wall, means for rotating said spindle and drum, a source of light located within said drum 'to project its light rays through said-slot,a carrier frame a plurality of color screens carried by said frame, a horizontal spindle for rotatably carrying said frame, a vertical slotted plate su ported by said platform and carrying sai horizontal s indle, a tappet on said drum to contact wit said carrier frame at each revolution of the drum, arms projectin radially from the carrier frame, springs ocated on the vertical slotted plate to contact with said arms and limit the angular motion of said carrier frame at each revolution of the drum, of walls forming a tapered compartmented chamber supported at their rear ends by the aforesaid slotted plate, an opaque plate carried by the aforesaid platform and having transparent portions, and supportin the forward ends of the compartmente chamber walls in such a position that said compartmented chamber is in register with slots in the aforesaid slotted plate, and with an advertisement on the trans arent por-- FREDERICK EVANS.

\Vitnesses:

THOMAS WILLIAM Rooms, WILLIAM ANDREW MARSHALL. 

